GB1178459A - Improvements in or relating to Incandescent Lamps having a Filament Provided with a Screen. - Google Patents

Improvements in or relating to Incandescent Lamps having a Filament Provided with a Screen.

Info

Publication number
GB1178459A
GB1178459A GB25124/67A GB2512467A GB1178459A GB 1178459 A GB1178459 A GB 1178459A GB 25124/67 A GB25124/67 A GB 25124/67A GB 2512467 A GB2512467 A GB 2512467A GB 1178459 A GB1178459 A GB 1178459A
Authority
GB
United Kingdom
Prior art keywords
screen
filament
incandescent lamps
wire
relating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB25124/67A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1178459A publication Critical patent/GB1178459A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/26—Screens; Filters

Landscapes

  • Overhead Projectors And Projection Screens (AREA)
  • Planar Illumination Modules (AREA)
  • Discharge Lamp (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)
GB25124/67A 1966-06-03 1967-05-31 Improvements in or relating to Incandescent Lamps having a Filament Provided with a Screen. Expired GB1178459A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6607700A NL6607700A (xx) 1966-06-03 1966-06-03

Publications (1)

Publication Number Publication Date
GB1178459A true GB1178459A (en) 1970-01-21

Family

ID=19796781

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25124/67A Expired GB1178459A (en) 1966-06-03 1967-05-31 Improvements in or relating to Incandescent Lamps having a Filament Provided with a Screen.

Country Status (4)

Country Link
US (1) US3471737A (xx)
DE (1) DE1589251B2 (xx)
GB (1) GB1178459A (xx)
NL (1) NL6607700A (xx)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR720752A (fr) * 1930-10-31 1932-02-24 Lampes Sa Perfectionnements à la fabrication des lampes à incandescence
NL47365C (xx) * 1936-07-29
BE441281A (xx) * 1940-01-19
NL62118C (xx) * 1941-04-30
US2326419A (en) * 1942-12-31 1943-08-10 Gen Electric Electric lamp
US2467710A (en) * 1946-06-28 1949-04-19 Gen Electric Incandescent lamp
US2784338A (en) * 1954-07-09 1957-03-05 Siemens Electric Lamps & Suppl Incandescent electric lamps
US2862125A (en) * 1956-01-06 1958-11-25 Sylvania Electric Prod Heat shield for incandescent lamp
US3034007A (en) * 1959-01-23 1962-05-08 Gen Electric Electric incandescent lamp
US2973443A (en) * 1959-06-10 1961-02-28 Gen Electric Electric incandescent lamp
NL112992C (xx) * 1960-04-14

Also Published As

Publication number Publication date
DE1589251B2 (de) 1975-10-09
NL6607700A (xx) 1967-12-04
US3471737A (en) 1969-10-07
DE1589251A1 (de) 1970-03-26

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